The operation of dry-type transformers; Buzz” Sound is essentially the vibration caused by magnetostriction in the iron core, as well as the vibration superposition result of electromagnetic forces acting on components such as windings and iron cores. But; Always buzzing; It needs to be divided into two situations: normal operation and abnormal hidden dangers:
1. Normal operation; “ Basic Sound”
If the sound is uniform, stable, and the volume is within the designed noise range of the device, it is a normal phenomenon. This is the inherent vibration sound during the electromagnetic conversion process of transformers. As long as the load is stable and the voltage is normal, there is no need to worry excessively. For example, dry-type transformers in residential distribution rooms, which are continuously and uniformly used on a daily basis; “ Buzz” Sound, mostly in normal operating condition.
2. Transformer“ Bian Yin” Common protest methods
| Abnormal performance | Possible reasons | Danger level | Response measures |
| The volume has significantly increased | ① Overload operation ② Loose iron core ③ High grid voltage | Medium to high risk | Immediately measure the load, check the voltage, and cut off the power to tighten the iron core |
| Sharp/piercing sound | ① The edge of the silicon steel sheet is not tightly pressed ② Partial discharge (sizzling sound) | High risk | Power outage inspection of insulation and elimination of discharge points |
| Uneven allocation of resources/fluctuating sizes | ① Poor contact ② Harmonic interference in the power grid | Medium risk | Detect contact resistance. Install a filter |
| Accompanied by explosive sounds | ① Internal short circuit or arc discharge ② Insulation damage | Urgent danger | Immediately cut off power and contact a professional for maintenance |
Caution: If there is abnormal transformer noise accompanied by odor or abnormal temperature, be sure to immediately cut off the power and ask professional personnel to handle it!
Dry type transformers will not be used for no reason; Change voice; Every abnormal sound is a distress signal! Safety is no small matter, timely investigation and discovery are necessary; Change voice” To avoid even greater losses!
Quality electricity, the first choice is Zhongyi! Zhongyi 24-hour worry free warranty!
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